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Commit | Line | Data |
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10bea152 JS |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
17712991 | 8 | #include "cache.h" |
7f0e39fa | 9 | #include "exec_cmd.h" |
572e4f6a | 10 | #include "strbuf.h" |
2b64fc89 | 11 | #include "quote.h" |
17712991 LT |
12 | |
13 | #define MAXNAME (256) | |
14 | ||
924aaf3e RJ |
15 | typedef struct config_file { |
16 | struct config_file *prev; | |
17 | FILE *f; | |
18 | const char *name; | |
19 | int linenr; | |
20 | int eof; | |
21 | struct strbuf value; | |
22 | char var[MAXNAME]; | |
23 | } config_file; | |
24 | ||
25 | static config_file *cf; | |
26 | ||
960ccca6 DH |
27 | static int zlib_compression_seen; |
28 | ||
dc871831 DB |
29 | const char *config_exclusive_filename = NULL; |
30 | ||
8b1fa778 AR |
31 | static void lowercase(char *p) |
32 | { | |
33 | for (; *p; p++) | |
34 | *p = tolower(*p); | |
35 | } | |
8b1fa778 | 36 | |
2b64fc89 JK |
37 | void git_config_push_parameter(const char *text) |
38 | { | |
39 | struct strbuf env = STRBUF_INIT; | |
40 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
41 | if (old) { | |
42 | strbuf_addstr(&env, old); | |
43 | strbuf_addch(&env, ' '); | |
44 | } | |
45 | sq_quote_buf(&env, text); | |
46 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
47 | strbuf_release(&env); | |
48 | } | |
49 | ||
2496844b JK |
50 | int git_config_parse_parameter(const char *text, |
51 | config_fn_t fn, void *data) | |
8b1fa778 | 52 | { |
572e4f6a | 53 | struct strbuf **pair; |
f77bccae | 54 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
55 | if (!pair[0]) |
56 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
57 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
58 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
59 | strbuf_trim(pair[0]); | |
60 | if (!pair[0]->len) { | |
61 | strbuf_list_free(pair); | |
06eb708f | 62 | return error("bogus config parameter: %s", text); |
8b1fa778 | 63 | } |
06eb708f JK |
64 | lowercase(pair[0]->buf); |
65 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
66 | strbuf_list_free(pair); | |
67 | return -1; | |
572e4f6a AR |
68 | } |
69 | strbuf_list_free(pair); | |
8b1fa778 AR |
70 | return 0; |
71 | } | |
72 | ||
06eb708f JK |
73 | int git_config_from_parameters(config_fn_t fn, void *data) |
74 | { | |
2b64fc89 JK |
75 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
76 | char *envw; | |
77 | const char **argv = NULL; | |
78 | int nr = 0, alloc = 0; | |
79 | int i; | |
80 | ||
81 | if (!env) | |
82 | return 0; | |
83 | /* sq_dequote will write over it */ | |
84 | envw = xstrdup(env); | |
85 | ||
86 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
87 | free(envw); | |
88 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
89 | } | |
90 | ||
91 | for (i = 0; i < nr; i++) { | |
06eb708f | 92 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
93 | free(argv); |
94 | free(envw); | |
95 | return -1; | |
96 | } | |
97 | } | |
98 | ||
99 | free(argv); | |
100 | free(envw); | |
06eb708f | 101 | return nr > 0; |
2b64fc89 JK |
102 | } |
103 | ||
17712991 LT |
104 | static int get_next_char(void) |
105 | { | |
106 | int c; | |
107 | FILE *f; | |
108 | ||
109 | c = '\n'; | |
924aaf3e | 110 | if (cf && ((f = cf->f) != NULL)) { |
17712991 | 111 | c = fgetc(f); |
db2c075d JH |
112 | if (c == '\r') { |
113 | /* DOS like systems */ | |
114 | c = fgetc(f); | |
115 | if (c != '\n') { | |
116 | ungetc(c, f); | |
117 | c = '\r'; | |
118 | } | |
119 | } | |
17712991 | 120 | if (c == '\n') |
924aaf3e | 121 | cf->linenr++; |
17712991 | 122 | if (c == EOF) { |
924aaf3e | 123 | cf->eof = 1; |
17712991 LT |
124 | c = '\n'; |
125 | } | |
126 | } | |
127 | return c; | |
128 | } | |
129 | ||
130 | static char *parse_value(void) | |
131 | { | |
e96c19c5 | 132 | int quote = 0, comment = 0, space = 0; |
17712991 | 133 | |
924aaf3e | 134 | strbuf_reset(&cf->value); |
17712991 LT |
135 | for (;;) { |
136 | int c = get_next_char(); | |
17712991 LT |
137 | if (c == '\n') { |
138 | if (quote) | |
139 | return NULL; | |
924aaf3e | 140 | return cf->value.buf; |
17712991 LT |
141 | } |
142 | if (comment) | |
143 | continue; | |
144 | if (isspace(c) && !quote) { | |
924aaf3e | 145 | if (cf->value.len) |
ebdaae37 | 146 | space++; |
17712991 LT |
147 | continue; |
148 | } | |
7ebdba61 JS |
149 | if (!quote) { |
150 | if (c == ';' || c == '#') { | |
151 | comment = 1; | |
152 | continue; | |
153 | } | |
154 | } | |
ebdaae37 | 155 | for (; space; space--) |
924aaf3e | 156 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
157 | if (c == '\\') { |
158 | c = get_next_char(); | |
159 | switch (c) { | |
160 | case '\n': | |
161 | continue; | |
162 | case 't': | |
163 | c = '\t'; | |
164 | break; | |
165 | case 'b': | |
166 | c = '\b'; | |
167 | break; | |
168 | case 'n': | |
169 | c = '\n'; | |
170 | break; | |
5cbb401d LT |
171 | /* Some characters escape as themselves */ |
172 | case '\\': case '"': | |
173 | break; | |
174 | /* Reject unknown escape sequences */ | |
175 | default: | |
176 | return NULL; | |
17712991 | 177 | } |
924aaf3e | 178 | strbuf_addch(&cf->value, c); |
17712991 LT |
179 | continue; |
180 | } | |
181 | if (c == '"') { | |
182 | quote = 1-quote; | |
183 | continue; | |
184 | } | |
924aaf3e | 185 | strbuf_addch(&cf->value, c); |
17712991 LT |
186 | } |
187 | } | |
188 | ||
38c5afa8 LT |
189 | static inline int iskeychar(int c) |
190 | { | |
191 | return isalnum(c) || c == '-'; | |
192 | } | |
193 | ||
ef90d6d4 | 194 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
195 | { |
196 | int c; | |
197 | char *value; | |
198 | ||
199 | /* Get the full name */ | |
200 | for (;;) { | |
201 | c = get_next_char(); | |
924aaf3e | 202 | if (cf->eof) |
17712991 | 203 | break; |
38c5afa8 | 204 | if (!iskeychar(c)) |
17712991 LT |
205 | break; |
206 | name[len++] = tolower(c); | |
207 | if (len >= MAXNAME) | |
208 | return -1; | |
209 | } | |
210 | name[len] = 0; | |
211 | while (c == ' ' || c == '\t') | |
212 | c = get_next_char(); | |
213 | ||
214 | value = NULL; | |
215 | if (c != '\n') { | |
216 | if (c != '=') | |
217 | return -1; | |
218 | value = parse_value(); | |
219 | if (!value) | |
220 | return -1; | |
221 | } | |
ef90d6d4 | 222 | return fn(name, value, data); |
17712991 LT |
223 | } |
224 | ||
d14f7764 LT |
225 | static int get_extended_base_var(char *name, int baselen, int c) |
226 | { | |
227 | do { | |
228 | if (c == '\n') | |
229 | return -1; | |
230 | c = get_next_char(); | |
231 | } while (isspace(c)); | |
232 | ||
233 | /* We require the format to be '[base "extension"]' */ | |
234 | if (c != '"') | |
235 | return -1; | |
236 | name[baselen++] = '.'; | |
237 | ||
238 | for (;;) { | |
239 | int c = get_next_char(); | |
240 | if (c == '\n') | |
241 | return -1; | |
242 | if (c == '"') | |
243 | break; | |
244 | if (c == '\\') { | |
245 | c = get_next_char(); | |
246 | if (c == '\n') | |
247 | return -1; | |
248 | } | |
249 | name[baselen++] = c; | |
250 | if (baselen > MAXNAME / 2) | |
251 | return -1; | |
252 | } | |
253 | ||
254 | /* Final ']' */ | |
255 | if (get_next_char() != ']') | |
256 | return -1; | |
257 | return baselen; | |
258 | } | |
259 | ||
17712991 LT |
260 | static int get_base_var(char *name) |
261 | { | |
262 | int baselen = 0; | |
263 | ||
264 | for (;;) { | |
265 | int c = get_next_char(); | |
924aaf3e | 266 | if (cf->eof) |
17712991 LT |
267 | return -1; |
268 | if (c == ']') | |
269 | return baselen; | |
d14f7764 LT |
270 | if (isspace(c)) |
271 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 272 | if (!iskeychar(c) && c != '.') |
17712991 LT |
273 | return -1; |
274 | if (baselen > MAXNAME / 2) | |
275 | return -1; | |
276 | name[baselen++] = tolower(c); | |
277 | } | |
278 | } | |
279 | ||
ef90d6d4 | 280 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
281 | { |
282 | int comment = 0; | |
283 | int baselen = 0; | |
924aaf3e | 284 | char *var = cf->var; |
17712991 | 285 | |
de056402 PB |
286 | /* U+FEFF Byte Order Mark in UTF8 */ |
287 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
288 | const unsigned char *bomptr = utf8_bom; | |
289 | ||
17712991 LT |
290 | for (;;) { |
291 | int c = get_next_char(); | |
de056402 PB |
292 | if (bomptr && *bomptr) { |
293 | /* We are at the file beginning; skip UTF8-encoded BOM | |
294 | * if present. Sane editors won't put this in on their | |
295 | * own, but e.g. Windows Notepad will do it happily. */ | |
296 | if ((unsigned char) c == *bomptr) { | |
297 | bomptr++; | |
298 | continue; | |
299 | } else { | |
300 | /* Do not tolerate partial BOM. */ | |
301 | if (bomptr != utf8_bom) | |
302 | break; | |
303 | /* No BOM at file beginning. Cool. */ | |
304 | bomptr = NULL; | |
305 | } | |
306 | } | |
17712991 | 307 | if (c == '\n') { |
924aaf3e | 308 | if (cf->eof) |
17712991 LT |
309 | return 0; |
310 | comment = 0; | |
311 | continue; | |
312 | } | |
313 | if (comment || isspace(c)) | |
314 | continue; | |
315 | if (c == '#' || c == ';') { | |
316 | comment = 1; | |
317 | continue; | |
318 | } | |
319 | if (c == '[') { | |
320 | baselen = get_base_var(var); | |
321 | if (baselen <= 0) | |
322 | break; | |
323 | var[baselen++] = '.'; | |
324 | var[baselen] = 0; | |
325 | continue; | |
326 | } | |
327 | if (!isalpha(c)) | |
328 | break; | |
128af9d1 | 329 | var[baselen] = tolower(c); |
ef90d6d4 | 330 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
331 | break; |
332 | } | |
924aaf3e | 333 | die("bad config file line %d in %s", cf->linenr, cf->name); |
17712991 LT |
334 | } |
335 | ||
ebaa1bd4 | 336 | static int parse_unit_factor(const char *end, uintmax_t *val) |
0b87b6e0 BD |
337 | { |
338 | if (!*end) | |
339 | return 1; | |
c8deb5a1 SP |
340 | else if (!strcasecmp(end, "k")) { |
341 | *val *= 1024; | |
342 | return 1; | |
343 | } | |
344 | else if (!strcasecmp(end, "m")) { | |
345 | *val *= 1024 * 1024; | |
346 | return 1; | |
347 | } | |
348 | else if (!strcasecmp(end, "g")) { | |
349 | *val *= 1024 * 1024 * 1024; | |
350 | return 1; | |
351 | } | |
352 | return 0; | |
0b87b6e0 BD |
353 | } |
354 | ||
0433bcd9 | 355 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
356 | { |
357 | if (value && *value) { | |
358 | char *end; | |
ebaa1bd4 NA |
359 | intmax_t val; |
360 | uintmax_t uval; | |
361 | uintmax_t factor = 1; | |
362 | ||
363 | errno = 0; | |
364 | val = strtoimax(value, &end, 0); | |
365 | if (errno == ERANGE) | |
366 | return 0; | |
c8deb5a1 SP |
367 | if (!parse_unit_factor(end, &factor)) |
368 | return 0; | |
ebaa1bd4 NA |
369 | uval = abs(val); |
370 | uval *= factor; | |
371 | if ((uval > maximum_signed_value_of_type(long)) || | |
372 | (abs(val) > uval)) | |
373 | return 0; | |
374 | val *= factor; | |
375 | *ret = val; | |
0b87b6e0 BD |
376 | return 1; |
377 | } | |
378 | return 0; | |
379 | } | |
380 | ||
381 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
382 | { |
383 | if (value && *value) { | |
384 | char *end; | |
ebaa1bd4 NA |
385 | uintmax_t val; |
386 | uintmax_t oldval; | |
387 | ||
388 | errno = 0; | |
389 | val = strtoumax(value, &end, 0); | |
390 | if (errno == ERANGE) | |
391 | return 0; | |
392 | oldval = val; | |
c8deb5a1 SP |
393 | if (!parse_unit_factor(end, &val)) |
394 | return 0; | |
ebaa1bd4 NA |
395 | if ((val > maximum_unsigned_value_of_type(long)) || |
396 | (oldval > val)) | |
397 | return 0; | |
c8deb5a1 | 398 | *ret = val; |
0b87b6e0 | 399 | return 1; |
17712991 | 400 | } |
0b87b6e0 BD |
401 | return 0; |
402 | } | |
403 | ||
c1867cea JK |
404 | static void die_bad_config(const char *name) |
405 | { | |
924aaf3e RJ |
406 | if (cf && cf->name) |
407 | die("bad config value for '%s' in %s", name, cf->name); | |
c1867cea JK |
408 | die("bad config value for '%s'", name); |
409 | } | |
410 | ||
0b87b6e0 BD |
411 | int git_config_int(const char *name, const char *value) |
412 | { | |
0433bcd9 | 413 | long ret = 0; |
0b87b6e0 | 414 | if (!git_parse_long(value, &ret)) |
c1867cea | 415 | die_bad_config(name); |
0b87b6e0 BD |
416 | return ret; |
417 | } | |
418 | ||
419 | unsigned long git_config_ulong(const char *name, const char *value) | |
420 | { | |
421 | unsigned long ret; | |
422 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 423 | die_bad_config(name); |
0b87b6e0 | 424 | return ret; |
17712991 LT |
425 | } |
426 | ||
b2be2f6a | 427 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
428 | { |
429 | if (!value) | |
430 | return 1; | |
431 | if (!*value) | |
432 | return 0; | |
8420ccd8 JH |
433 | if (!strcasecmp(value, "true") |
434 | || !strcasecmp(value, "yes") | |
435 | || !strcasecmp(value, "on")) | |
17712991 | 436 | return 1; |
8420ccd8 JH |
437 | if (!strcasecmp(value, "false") |
438 | || !strcasecmp(value, "no") | |
439 | || !strcasecmp(value, "off")) | |
17712991 | 440 | return 0; |
8420ccd8 JH |
441 | return -1; |
442 | } | |
443 | ||
b2be2f6a JK |
444 | int git_config_maybe_bool(const char *name, const char *value) |
445 | { | |
db6195ef | 446 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
447 | if (0 <= v) |
448 | return v; | |
db6195ef JK |
449 | if (git_parse_long(value, &v)) |
450 | return !!v; | |
b2be2f6a JK |
451 | return -1; |
452 | } | |
453 | ||
8420ccd8 JH |
454 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
455 | { | |
b2be2f6a | 456 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
457 | if (0 <= v) { |
458 | *is_bool = 1; | |
459 | return v; | |
460 | } | |
a53f2ec6 | 461 | *is_bool = 0; |
c35b0b58 | 462 | return git_config_int(name, value); |
17712991 LT |
463 | } |
464 | ||
a53f2ec6 JH |
465 | int git_config_bool(const char *name, const char *value) |
466 | { | |
467 | int discard; | |
c35b0b58 | 468 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
469 | } |
470 | ||
ea5105a5 CC |
471 | int git_config_string(const char **dest, const char *var, const char *value) |
472 | { | |
473 | if (!value) | |
474 | return config_error_nonbool(var); | |
475 | *dest = xstrdup(value); | |
476 | return 0; | |
477 | } | |
478 | ||
395de250 MM |
479 | int git_config_pathname(const char **dest, const char *var, const char *value) |
480 | { | |
481 | if (!value) | |
482 | return config_error_nonbool(var); | |
483 | *dest = expand_user_path(value); | |
484 | if (!*dest) | |
485 | die("Failed to expand user dir in: '%s'", value); | |
486 | return 0; | |
487 | } | |
488 | ||
806e2ad7 | 489 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
490 | { |
491 | /* This needs a better name */ | |
492 | if (!strcmp(var, "core.filemode")) { | |
493 | trust_executable_bit = git_config_bool(var, value); | |
494 | return 0; | |
495 | } | |
1ce4790b AR |
496 | if (!strcmp(var, "core.trustctime")) { |
497 | trust_ctime = git_config_bool(var, value); | |
498 | return 0; | |
499 | } | |
17712991 | 500 | |
9378c161 JH |
501 | if (!strcmp(var, "core.quotepath")) { |
502 | quote_path_fully = git_config_bool(var, value); | |
503 | return 0; | |
504 | } | |
505 | ||
78a8d641 JS |
506 | if (!strcmp(var, "core.symlinks")) { |
507 | has_symlinks = git_config_bool(var, value); | |
508 | return 0; | |
509 | } | |
510 | ||
0a9b88b7 LT |
511 | if (!strcmp(var, "core.ignorecase")) { |
512 | ignore_case = git_config_bool(var, value); | |
513 | return 0; | |
514 | } | |
515 | ||
64589a03 JH |
516 | if (!strcmp(var, "core.attributesfile")) |
517 | return git_config_pathname(&git_attributes_file, var, value); | |
518 | ||
7d1864ce JH |
519 | if (!strcmp(var, "core.bare")) { |
520 | is_bare_repository_cfg = git_config_bool(var, value); | |
521 | return 0; | |
522 | } | |
523 | ||
5f73076c JH |
524 | if (!strcmp(var, "core.ignorestat")) { |
525 | assume_unchanged = git_config_bool(var, value); | |
526 | return 0; | |
527 | } | |
528 | ||
e388c738 JH |
529 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
530 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
531 | return 0; |
532 | } | |
533 | ||
6de08ae6 SP |
534 | if (!strcmp(var, "core.logallrefupdates")) { |
535 | log_all_ref_updates = git_config_bool(var, value); | |
536 | return 0; | |
537 | } | |
538 | ||
2f8acdb3 JH |
539 | if (!strcmp(var, "core.warnambiguousrefs")) { |
540 | warn_ambiguous_refs = git_config_bool(var, value); | |
541 | return 0; | |
542 | } | |
543 | ||
a71f09fe | 544 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
545 | int abbrev = git_config_int(var, value); |
546 | if (abbrev < minimum_abbrev || abbrev > 40) | |
547 | return -1; | |
548 | default_abbrev = abbrev; | |
549 | return 0; | |
550 | } | |
551 | ||
960ccca6 | 552 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
553 | int level = git_config_int(var, value); |
554 | if (level == -1) | |
555 | level = Z_DEFAULT_COMPRESSION; | |
556 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
557 | die("bad zlib compression level %d", level); | |
558 | zlib_compression_level = level; | |
960ccca6 DH |
559 | zlib_compression_seen = 1; |
560 | return 0; | |
561 | } | |
562 | ||
563 | if (!strcmp(var, "core.compression")) { | |
564 | int level = git_config_int(var, value); | |
565 | if (level == -1) | |
566 | level = Z_DEFAULT_COMPRESSION; | |
567 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
568 | die("bad zlib compression level %d", level); | |
569 | core_compression_level = level; | |
570 | core_compression_seen = 1; | |
571 | if (!zlib_compression_seen) | |
572 | zlib_compression_level = level; | |
12f6c308 JBH |
573 | return 0; |
574 | } | |
575 | ||
60bb8b14 | 576 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 577 | int pgsz_x2 = getpagesize() * 2; |
ebaa1bd4 | 578 | packed_git_window_size = git_config_ulong(var, value); |
5faaf246 JH |
579 | |
580 | /* This value must be multiple of (pagesize * 2) */ | |
581 | packed_git_window_size /= pgsz_x2; | |
582 | if (packed_git_window_size < 1) | |
583 | packed_git_window_size = 1; | |
584 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
585 | return 0; |
586 | } | |
587 | ||
15366280 | 588 | if (!strcmp(var, "core.bigfilethreshold")) { |
ebaa1bd4 | 589 | big_file_threshold = git_config_ulong(var, value); |
15366280 JH |
590 | return 0; |
591 | } | |
592 | ||
77ccc5bb | 593 | if (!strcmp(var, "core.packedgitlimit")) { |
ebaa1bd4 | 594 | packed_git_limit = git_config_ulong(var, value); |
77ccc5bb SP |
595 | return 0; |
596 | } | |
597 | ||
18bdec11 | 598 | if (!strcmp(var, "core.deltabasecachelimit")) { |
ebaa1bd4 | 599 | delta_base_cache_limit = git_config_ulong(var, value); |
18bdec11 SP |
600 | return 0; |
601 | } | |
602 | ||
5f44324d JH |
603 | if (!strcmp(var, "core.logpackaccess")) |
604 | return git_config_string(&log_pack_access, var, value); | |
605 | ||
6c510bee | 606 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 607 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 608 | if (core_eol == EOL_CRLF) |
942e7747 | 609 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 610 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
611 | return 0; |
612 | } | |
6c510bee LT |
613 | auto_crlf = git_config_bool(var, value); |
614 | return 0; | |
615 | } | |
616 | ||
21e5ad50 SP |
617 | if (!strcmp(var, "core.safecrlf")) { |
618 | if (value && !strcasecmp(value, "warn")) { | |
619 | safe_crlf = SAFE_CRLF_WARN; | |
620 | return 0; | |
621 | } | |
622 | safe_crlf = git_config_bool(var, value); | |
623 | return 0; | |
624 | } | |
625 | ||
942e7747 EB |
626 | if (!strcmp(var, "core.eol")) { |
627 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 628 | core_eol = EOL_LF; |
942e7747 | 629 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 630 | core_eol = EOL_CRLF; |
942e7747 | 631 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 632 | core_eol = EOL_NATIVE; |
942e7747 | 633 | else |
ec70f52f JH |
634 | core_eol = EOL_UNSET; |
635 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
636 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
637 | return 0; | |
638 | } | |
639 | ||
a97a7468 JS |
640 | if (!strcmp(var, "core.notesref")) { |
641 | notes_ref_name = xstrdup(value); | |
642 | return 0; | |
643 | } | |
644 | ||
806e2ad7 LT |
645 | if (!strcmp(var, "core.pager")) |
646 | return git_config_string(&pager_program, var, value); | |
647 | ||
648 | if (!strcmp(var, "core.editor")) | |
649 | return git_config_string(&editor_program, var, value); | |
650 | ||
d3e7da89 AK |
651 | if (!strcmp(var, "core.askpass")) |
652 | return git_config_string(&askpass_program, var, value); | |
653 | ||
806e2ad7 | 654 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 655 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
656 | |
657 | if (!strcmp(var, "core.whitespace")) { | |
658 | if (!value) | |
659 | return config_error_nonbool(var); | |
660 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
661 | return 0; | |
662 | } | |
663 | ||
aafe9fba LT |
664 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
665 | fsync_object_files = git_config_bool(var, value); | |
666 | return 0; | |
667 | } | |
668 | ||
671c9b7e LT |
669 | if (!strcmp(var, "core.preloadindex")) { |
670 | core_preload_index = git_config_bool(var, value); | |
671 | return 0; | |
672 | } | |
673 | ||
348df166 JS |
674 | if (!strcmp(var, "core.createobject")) { |
675 | if (!strcmp(value, "rename")) | |
676 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
677 | else if (!strcmp(value, "link")) | |
678 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
679 | else | |
680 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
681 | return 0; |
682 | } | |
683 | ||
08aefc9e NTND |
684 | if (!strcmp(var, "core.sparsecheckout")) { |
685 | core_apply_sparse_checkout = git_config_bool(var, value); | |
686 | return 0; | |
687 | } | |
688 | ||
806e2ad7 LT |
689 | /* Add other config variables here and to Documentation/config.txt. */ |
690 | return 0; | |
691 | } | |
692 | ||
d1364529 | 693 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 694 | { |
e1b10391 | 695 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
696 | if (!value) |
697 | return config_error_nonbool(var); | |
817151e6 | 698 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 699 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
700 | return 0; |
701 | } | |
702 | ||
703 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
704 | if (!value) |
705 | return config_error_nonbool(var); | |
817151e6 | 706 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 707 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
708 | return 0; |
709 | } | |
710 | ||
d1364529 LT |
711 | /* Add other config variables here and to Documentation/config.txt. */ |
712 | return 0; | |
713 | } | |
714 | ||
1141f492 | 715 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 716 | { |
ea5105a5 CC |
717 | if (!strcmp(var, "i18n.commitencoding")) |
718 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 719 | |
ea5105a5 CC |
720 | if (!strcmp(var, "i18n.logoutputencoding")) |
721 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 722 | |
1141f492 LT |
723 | /* Add other config variables here and to Documentation/config.txt. */ |
724 | return 0; | |
725 | } | |
039bc64e | 726 | |
1141f492 LT |
727 | static int git_default_branch_config(const char *var, const char *value) |
728 | { | |
9ed36cfa JS |
729 | if (!strcmp(var, "branch.autosetupmerge")) { |
730 | if (value && !strcasecmp(value, "always")) { | |
731 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
732 | return 0; | |
733 | } | |
734 | git_branch_track = git_config_bool(var, value); | |
735 | return 0; | |
736 | } | |
c998ae9b DS |
737 | if (!strcmp(var, "branch.autosetuprebase")) { |
738 | if (!value) | |
739 | return config_error_nonbool(var); | |
740 | else if (!strcmp(value, "never")) | |
741 | autorebase = AUTOREBASE_NEVER; | |
742 | else if (!strcmp(value, "local")) | |
743 | autorebase = AUTOREBASE_LOCAL; | |
744 | else if (!strcmp(value, "remote")) | |
745 | autorebase = AUTOREBASE_REMOTE; | |
746 | else if (!strcmp(value, "always")) | |
747 | autorebase = AUTOREBASE_ALWAYS; | |
748 | else | |
749 | return error("Malformed value for %s", var); | |
750 | return 0; | |
751 | } | |
a9cc857a | 752 | |
1ab661dd | 753 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
754 | return 0; |
755 | } | |
756 | ||
52153747 FAG |
757 | static int git_default_push_config(const char *var, const char *value) |
758 | { | |
759 | if (!strcmp(var, "push.default")) { | |
760 | if (!value) | |
761 | return config_error_nonbool(var); | |
762 | else if (!strcmp(value, "nothing")) | |
763 | push_default = PUSH_DEFAULT_NOTHING; | |
764 | else if (!strcmp(value, "matching")) | |
765 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
766 | else if (!strcmp(value, "upstream")) |
767 | push_default = PUSH_DEFAULT_UPSTREAM; | |
768 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
769 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
770 | else if (!strcmp(value, "current")) |
771 | push_default = PUSH_DEFAULT_CURRENT; | |
772 | else { | |
773 | error("Malformed value for %s: %s", var, value); | |
774 | return error("Must be one of nothing, matching, " | |
775 | "tracking or current."); | |
776 | } | |
777 | return 0; | |
778 | } | |
779 | ||
780 | /* Add other config variables here and to Documentation/config.txt. */ | |
781 | return 0; | |
782 | } | |
783 | ||
d551a488 MSO |
784 | static int git_default_mailmap_config(const char *var, const char *value) |
785 | { | |
786 | if (!strcmp(var, "mailmap.file")) | |
787 | return git_config_string(&git_mailmap_file, var, value); | |
788 | ||
789 | /* Add other config variables here and to Documentation/config.txt. */ | |
790 | return 0; | |
791 | } | |
792 | ||
1141f492 LT |
793 | int git_default_config(const char *var, const char *value, void *dummy) |
794 | { | |
795 | if (!prefixcmp(var, "core.")) | |
796 | return git_default_core_config(var, value); | |
797 | ||
798 | if (!prefixcmp(var, "user.")) | |
799 | return git_default_user_config(var, value); | |
800 | ||
801 | if (!prefixcmp(var, "i18n.")) | |
802 | return git_default_i18n_config(var, value); | |
803 | ||
804 | if (!prefixcmp(var, "branch.")) | |
805 | return git_default_branch_config(var, value); | |
806 | ||
52153747 FAG |
807 | if (!prefixcmp(var, "push.")) |
808 | return git_default_push_config(var, value); | |
809 | ||
d551a488 MSO |
810 | if (!prefixcmp(var, "mailmap.")) |
811 | return git_default_mailmap_config(var, value); | |
812 | ||
75194438 JK |
813 | if (!prefixcmp(var, "advice.")) |
814 | return git_default_advice_config(var, value); | |
815 | ||
1141f492 LT |
816 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
817 | pager_use_color = git_config_bool(var,value); | |
818 | return 0; | |
819 | } | |
820 | ||
568508e7 JH |
821 | if (!strcmp(var, "pack.packsizelimit")) { |
822 | pack_size_limit_cfg = git_config_ulong(var, value); | |
823 | return 0; | |
824 | } | |
1141f492 LT |
825 | /* Add other config variables here and to Documentation/config.txt. */ |
826 | return 0; | |
827 | } | |
828 | ||
ef90d6d4 | 829 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
830 | { |
831 | int ret; | |
4f629539 | 832 | FILE *f = fopen(filename, "r"); |
17712991 LT |
833 | |
834 | ret = -1; | |
835 | if (f) { | |
924aaf3e RJ |
836 | config_file top; |
837 | ||
838 | /* push config-file parsing state stack */ | |
839 | top.prev = cf; | |
840 | top.f = f; | |
841 | top.name = filename; | |
842 | top.linenr = 1; | |
843 | top.eof = 0; | |
844 | strbuf_init(&top.value, 1024); | |
845 | cf = ⊤ | |
846 | ||
ef90d6d4 | 847 | ret = git_parse_file(fn, data); |
924aaf3e RJ |
848 | |
849 | /* pop config-file parsing state stack */ | |
850 | strbuf_release(&top.value); | |
851 | cf = top.prev; | |
852 | ||
17712991 LT |
853 | fclose(f); |
854 | } | |
855 | return ret; | |
856 | } | |
10bea152 | 857 | |
506b17b1 JS |
858 | const char *git_etc_gitconfig(void) |
859 | { | |
7f0e39fa | 860 | static const char *system_wide; |
2de9de5e SP |
861 | if (!system_wide) |
862 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 863 | return system_wide; |
506b17b1 JS |
864 | } |
865 | ||
0ef37164 | 866 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
867 | { |
868 | const char *v = getenv(k); | |
869 | return v ? git_config_bool(k, v) : def; | |
870 | } | |
871 | ||
872 | int git_config_system(void) | |
873 | { | |
874 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
875 | } | |
876 | ||
dbdf5854 | 877 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 878 | { |
aa387407 | 879 | int ret = 0, found = 0; |
dc871831 | 880 | const char *home = NULL; |
5f1a63e0 | 881 | |
8befc50c | 882 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
883 | if (config_exclusive_filename) |
884 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 885 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
886 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
887 | data); | |
aa387407 FC |
888 | found += 1; |
889 | } | |
5f1a63e0 | 890 | |
dc871831 | 891 | home = getenv("HOME"); |
8f323c00 | 892 | if (home) { |
05bab3ea RJ |
893 | char buf[PATH_MAX]; |
894 | char *user_config = mksnpath(buf, sizeof(buf), "%s/.gitconfig", home); | |
aa387407 | 895 | if (!access(user_config, R_OK)) { |
dc871831 | 896 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
897 | found += 1; |
898 | } | |
5f1a63e0 JS |
899 | } |
900 | ||
dbdf5854 | 901 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
902 | ret += git_config_from_file(fn, repo_config, data); |
903 | found += 1; | |
904 | } | |
8b1fa778 | 905 | |
5a0c9eeb JK |
906 | switch (git_config_from_parameters(fn, data)) { |
907 | case -1: /* error */ | |
1c2c9bee | 908 | die("unable to parse command-line config"); |
5a0c9eeb JK |
909 | break; |
910 | case 0: /* found nothing */ | |
911 | break; | |
912 | default: /* found at least one item */ | |
913 | found++; | |
914 | break; | |
915 | } | |
8b1fa778 | 916 | |
1f2baa78 | 917 | return ret == 0 ? found : ret; |
4f629539 JH |
918 | } |
919 | ||
dbdf5854 NTND |
920 | int git_config(config_fn_t fn, void *data) |
921 | { | |
922 | char *repo_config = NULL; | |
923 | int ret; | |
924 | ||
925 | repo_config = git_pathdup("config"); | |
926 | ret = git_config_early(fn, data, repo_config); | |
927 | if (repo_config) | |
928 | free(repo_config); | |
929 | return ret; | |
930 | } | |
931 | ||
10bea152 JS |
932 | /* |
933 | * Find all the stuff for git_config_set() below. | |
934 | */ | |
4ddba79d JS |
935 | |
936 | #define MAX_MATCHES 512 | |
937 | ||
10bea152 JS |
938 | static struct { |
939 | int baselen; | |
4b25d091 | 940 | char *key; |
f98d863d | 941 | int do_not_match; |
4b25d091 | 942 | regex_t *value_regex; |
4ddba79d | 943 | int multi_replace; |
dc49cd76 | 944 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
945 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
946 | int seen; | |
947 | } store; | |
948 | ||
4b25d091 | 949 | static int matches(const char *key, const char *value) |
f98d863d JS |
950 | { |
951 | return !strcmp(key, store.key) && | |
952 | (store.value_regex == NULL || | |
953 | (store.do_not_match ^ | |
954 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
955 | } | |
956 | ||
4b25d091 | 957 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 958 | { |
ae9ee41d JH |
959 | const char *ep; |
960 | size_t section_len; | |
924aaf3e | 961 | FILE *f = cf->f; |
ae9ee41d | 962 | |
10bea152 JS |
963 | switch (store.state) { |
964 | case KEY_SEEN: | |
f98d863d | 965 | if (matches(key, value)) { |
4ddba79d | 966 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 967 | warning("%s has multiple values", key); |
4ddba79d | 968 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 969 | error("too many matches for %s", key); |
4ddba79d | 970 | return 1; |
10bea152 | 971 | } |
4ddba79d | 972 | |
924aaf3e | 973 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
974 | store.seen++; |
975 | } | |
976 | break; | |
977 | case SECTION_SEEN: | |
ae9ee41d JH |
978 | /* |
979 | * What we are looking for is in store.key (both | |
980 | * section and var), and its section part is baselen | |
981 | * long. We found key (again, both section and var). | |
982 | * We would want to know if this key is in the same | |
983 | * section as what we are looking for. We already | |
984 | * know we are in the same section as what should | |
985 | * hold store.key. | |
986 | */ | |
987 | ep = strrchr(key, '.'); | |
988 | section_len = ep - key; | |
989 | ||
990 | if ((section_len != store.baselen) || | |
991 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
992 | store.state = SECTION_END_SEEN; |
993 | break; | |
ae9ee41d JH |
994 | } |
995 | ||
996 | /* | |
997 | * Do not increment matches: this is no match, but we | |
998 | * just made sure we are in the desired section. | |
999 | */ | |
924aaf3e | 1000 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1001 | /* fallthru */ |
1002 | case SECTION_END_SEEN: | |
1003 | case START: | |
f98d863d | 1004 | if (matches(key, value)) { |
924aaf3e | 1005 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1006 | store.state = KEY_SEEN; |
1007 | store.seen++; | |
d14f7764 LT |
1008 | } else { |
1009 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 1010 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 1011 | store.state = SECTION_SEEN; |
924aaf3e | 1012 | store.offset[store.seen] = ftell(f); |
d14f7764 | 1013 | } |
bdf0ef08 | 1014 | } |
10bea152 JS |
1015 | } |
1016 | return 0; | |
1017 | } | |
1018 | ||
64c0d71c | 1019 | static int write_error(const char *filename) |
480c9e52 | 1020 | { |
64c0d71c | 1021 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1022 | |
1023 | /* Same error code as "failed to rename". */ | |
1024 | return 4; | |
1025 | } | |
1026 | ||
4b25d091 | 1027 | static int store_write_section(int fd, const char *key) |
10bea152 | 1028 | { |
cb891a59 KH |
1029 | const char *dot; |
1030 | int i, success; | |
f285a2d7 | 1031 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1032 | |
cb891a59 | 1033 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1034 | if (dot) { |
cb891a59 KH |
1035 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1036 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1037 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1038 | strbuf_addch(&sb, '\\'); |
1039 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1040 | } |
cb891a59 KH |
1041 | strbuf_addstr(&sb, "\"]\n"); |
1042 | } else { | |
1043 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1044 | } |
1045 | ||
cb891a59 KH |
1046 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1047 | strbuf_release(&sb); | |
480c9e52 | 1048 | |
cb891a59 | 1049 | return success; |
10bea152 JS |
1050 | } |
1051 | ||
4b25d091 | 1052 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1053 | { |
cb891a59 KH |
1054 | int i, success; |
1055 | int length = strlen(key + store.baselen + 1); | |
1056 | const char *quote = ""; | |
f285a2d7 | 1057 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1058 | |
6281f394 JM |
1059 | /* |
1060 | * Check to see if the value needs to be surrounded with a dq pair. | |
1061 | * Note that problematic characters are always backslash-quoted; this | |
1062 | * check is about not losing leading or trailing SP and strings that | |
1063 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1064 | * configuration parser. | |
1065 | */ | |
cdd4fb15 | 1066 | if (value[0] == ' ') |
cb891a59 | 1067 | quote = "\""; |
cdd4fb15 BG |
1068 | for (i = 0; value[i]; i++) |
1069 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1070 | quote = "\""; |
1071 | if (i && value[i - 1] == ' ') | |
1072 | quote = "\""; | |
1073 | ||
cb891a59 KH |
1074 | strbuf_addf(&sb, "\t%.*s = %s", |
1075 | length, key + store.baselen + 1, quote); | |
10bea152 | 1076 | |
10bea152 JS |
1077 | for (i = 0; value[i]; i++) |
1078 | switch (value[i]) { | |
480c9e52 | 1079 | case '\n': |
cb891a59 | 1080 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1081 | break; |
1082 | case '\t': | |
cb891a59 | 1083 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1084 | break; |
1085 | case '"': | |
1086 | case '\\': | |
cb891a59 | 1087 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1088 | default: |
cb891a59 | 1089 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1090 | break; |
1091 | } | |
cb891a59 KH |
1092 | strbuf_addf(&sb, "%s\n", quote); |
1093 | ||
1094 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1095 | strbuf_release(&sb); | |
1096 | ||
1097 | return success; | |
10bea152 JS |
1098 | } |
1099 | ||
4b25d091 FC |
1100 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1101 | size_t offset_, int *found_bracket) | |
4ddba79d | 1102 | { |
dc49cd76 SP |
1103 | size_t equal_offset = size, bracket_offset = size; |
1104 | ssize_t offset; | |
4ddba79d | 1105 | |
7a31cc0f | 1106 | contline: |
a6080a0a | 1107 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1108 | && contents[offset] != '\n'; offset--) |
1109 | switch (contents[offset]) { | |
1110 | case '=': equal_offset = offset; break; | |
1111 | case ']': bracket_offset = offset; break; | |
1112 | } | |
7a31cc0f FL |
1113 | if (offset > 0 && contents[offset-1] == '\\') { |
1114 | offset_ = offset; | |
1115 | goto contline; | |
1116 | } | |
4ddba79d JS |
1117 | if (bracket_offset < equal_offset) { |
1118 | *found_bracket = 1; | |
1119 | offset = bracket_offset+1; | |
1120 | } else | |
1121 | offset++; | |
1122 | ||
1123 | return offset; | |
1124 | } | |
1125 | ||
5ec31182 RR |
1126 | int git_config_set_in_file(const char *config_filename, |
1127 | const char *key, const char *value) | |
1128 | { | |
1129 | return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
1130 | } | |
1131 | ||
4b25d091 | 1132 | int git_config_set(const char *key, const char *value) |
10bea152 | 1133 | { |
4ddba79d | 1134 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1135 | } |
1136 | ||
b09c53a3 LP |
1137 | /* |
1138 | * Auxiliary function to sanity-check and split the key into the section | |
1139 | * identifier and variable name. | |
1140 | * | |
1141 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1142 | * -2 if there is no section name in the key. | |
1143 | * | |
1144 | * store_key - pointer to char* which will hold a copy of the key with | |
1145 | * lowercase section and variable name | |
1146 | * baselen - pointer to int which will hold the length of the | |
1147 | * section + subsection part, can be NULL | |
1148 | */ | |
1149 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1150 | { | |
1151 | int i, dot, baselen; | |
1152 | const char *last_dot = strrchr(key, '.'); | |
1153 | ||
1154 | /* | |
1155 | * Since "key" actually contains the section name and the real | |
1156 | * key name separated by a dot, we have to know where the dot is. | |
1157 | */ | |
1158 | ||
2169ddc0 | 1159 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1160 | error("key does not contain a section: %s", key); |
7a397419 | 1161 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1162 | } |
1163 | ||
2169ddc0 LP |
1164 | if (!last_dot[1]) { |
1165 | error("key does not contain variable name: %s", key); | |
7a397419 | 1166 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1167 | } |
1168 | ||
b09c53a3 LP |
1169 | baselen = last_dot - key; |
1170 | if (baselen_) | |
1171 | *baselen_ = baselen; | |
1172 | ||
1173 | /* | |
1174 | * Validate the key and while at it, lower case it for matching. | |
1175 | */ | |
1176 | *store_key = xmalloc(strlen(key) + 1); | |
1177 | ||
1178 | dot = 0; | |
1179 | for (i = 0; key[i]; i++) { | |
1180 | unsigned char c = key[i]; | |
1181 | if (c == '.') | |
1182 | dot = 1; | |
1183 | /* Leave the extended basename untouched.. */ | |
1184 | if (!dot || i > baselen) { | |
1185 | if (!iskeychar(c) || | |
1186 | (i == baselen + 1 && !isalpha(c))) { | |
1187 | error("invalid key: %s", key); | |
1188 | goto out_free_ret_1; | |
1189 | } | |
1190 | c = tolower(c); | |
1191 | } else if (c == '\n') { | |
1192 | error("invalid key (newline): %s", key); | |
1193 | goto out_free_ret_1; | |
1194 | } | |
1195 | (*store_key)[i] = c; | |
1196 | } | |
1197 | (*store_key)[i] = 0; | |
1198 | ||
1199 | return 0; | |
1200 | ||
1201 | out_free_ret_1: | |
1202 | free(*store_key); | |
7a397419 | 1203 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1204 | } |
1205 | ||
10bea152 JS |
1206 | /* |
1207 | * If value==NULL, unset in (remove from) config, | |
1208 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1209 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1210 | * else all matching key/values (regardless how many) are removed, | |
1211 | * before the new pair is written. | |
10bea152 JS |
1212 | * |
1213 | * Returns 0 on success. | |
1214 | * | |
1215 | * This function does this: | |
1216 | * | |
1217 | * - it locks the config file by creating ".git/config.lock" | |
1218 | * | |
1219 | * - it then parses the config using store_aux() as validator to find | |
1220 | * the position on the key/value pair to replace. If it is to be unset, | |
1221 | * it must be found exactly once. | |
1222 | * | |
1223 | * - the config file is mmap()ed and the part before the match (if any) is | |
1224 | * written to the lock file, then the changed part and the rest. | |
1225 | * | |
1226 | * - the config file is removed and the lock file rename()d to it. | |
1227 | * | |
1228 | */ | |
5ec31182 RR |
1229 | int git_config_set_multivar_in_file(const char *config_filename, |
1230 | const char *key, const char *value, | |
1231 | const char *value_regex, int multi_replace) | |
10bea152 | 1232 | { |
f8ba655e | 1233 | int fd = -1, in_fd; |
dafc88b1 | 1234 | int ret; |
6cbf973c | 1235 | struct lock_file *lock = NULL; |
4ddba79d | 1236 | |
b09c53a3 LP |
1237 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1238 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1239 | if (ret) | |
dafc88b1 | 1240 | goto out_free; |
b17e659d JS |
1241 | |
1242 | store.multi_replace = multi_replace; | |
10bea152 | 1243 | |
10bea152 JS |
1244 | |
1245 | /* | |
6cbf973c | 1246 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1247 | * contents of .git/config will be written into it. |
1248 | */ | |
6cbf973c BS |
1249 | lock = xcalloc(sizeof(struct lock_file), 1); |
1250 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1251 | if (fd < 0) { | |
6ffd567b | 1252 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1253 | free(store.key); |
7a397419 | 1254 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1255 | goto out_free; |
10bea152 JS |
1256 | } |
1257 | ||
1258 | /* | |
1259 | * If .git/config does not exist yet, write a minimal version. | |
1260 | */ | |
88fb958b AR |
1261 | in_fd = open(config_filename, O_RDONLY); |
1262 | if ( in_fd < 0 ) { | |
10bea152 JS |
1263 | free(store.key); |
1264 | ||
88fb958b AR |
1265 | if ( ENOENT != errno ) { |
1266 | error("opening %s: %s", config_filename, | |
1267 | strerror(errno)); | |
7a397419 | 1268 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1269 | goto out_free; |
88fb958b | 1270 | } |
10bea152 JS |
1271 | /* if nothing to unset, error out */ |
1272 | if (value == NULL) { | |
7a397419 | 1273 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1274 | goto out_free; |
10bea152 JS |
1275 | } |
1276 | ||
4b25d091 | 1277 | store.key = (char *)key; |
480c9e52 | 1278 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1279 | !store_write_pair(fd, key, value)) |
1280 | goto write_err_out; | |
1281 | } else { | |
88fb958b | 1282 | struct stat st; |
4b25d091 | 1283 | char *contents; |
dc49cd76 SP |
1284 | size_t contents_sz, copy_begin, copy_end; |
1285 | int i, new_line = 0; | |
10bea152 JS |
1286 | |
1287 | if (value_regex == NULL) | |
1288 | store.value_regex = NULL; | |
1289 | else { | |
f98d863d JS |
1290 | if (value_regex[0] == '!') { |
1291 | store.do_not_match = 1; | |
1292 | value_regex++; | |
1293 | } else | |
1294 | store.do_not_match = 0; | |
1295 | ||
2d7320d0 | 1296 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1297 | if (regcomp(store.value_regex, value_regex, |
1298 | REG_EXTENDED)) { | |
64c0d71c | 1299 | error("invalid pattern: %s", value_regex); |
10bea152 | 1300 | free(store.value_regex); |
7a397419 | 1301 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1302 | goto out_free; |
10bea152 JS |
1303 | } |
1304 | } | |
1305 | ||
4ddba79d | 1306 | store.offset[0] = 0; |
10bea152 JS |
1307 | store.state = START; |
1308 | store.seen = 0; | |
1309 | ||
1310 | /* | |
1311 | * After this, store.offset will contain the *end* offset | |
1312 | * of the last match, or remain at 0 if no match was found. | |
1313 | * As a side effect, we make sure to transform only a valid | |
1314 | * existing config file. | |
1315 | */ | |
ef90d6d4 | 1316 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1317 | error("invalid config file %s", config_filename); |
10bea152 JS |
1318 | free(store.key); |
1319 | if (store.value_regex != NULL) { | |
1320 | regfree(store.value_regex); | |
1321 | free(store.value_regex); | |
1322 | } | |
7a397419 | 1323 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1324 | goto out_free; |
10bea152 JS |
1325 | } |
1326 | ||
1327 | free(store.key); | |
1328 | if (store.value_regex != NULL) { | |
1329 | regfree(store.value_regex); | |
1330 | free(store.value_regex); | |
1331 | } | |
1332 | ||
4ddba79d JS |
1333 | /* if nothing to unset, or too many matches, error out */ |
1334 | if ((store.seen == 0 && value == NULL) || | |
1335 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1336 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1337 | goto out_free; |
10bea152 JS |
1338 | } |
1339 | ||
88fb958b | 1340 | fstat(in_fd, &st); |
dc49cd76 SP |
1341 | contents_sz = xsize_t(st.st_size); |
1342 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1343 | MAP_PRIVATE, in_fd, 0); |
1344 | close(in_fd); | |
1345 | ||
4ddba79d JS |
1346 | if (store.seen == 0) |
1347 | store.seen = 1; | |
1348 | ||
1349 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1350 | if (store.offset[i] == 0) { | |
dc49cd76 | 1351 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1352 | } else if (store.state != KEY_SEEN) { |
1353 | copy_end = store.offset[i]; | |
10bea152 | 1354 | } else |
4ddba79d | 1355 | copy_end = find_beginning_of_line( |
dc49cd76 | 1356 | contents, contents_sz, |
4ddba79d JS |
1357 | store.offset[i]-2, &new_line); |
1358 | ||
02e5ba4a JK |
1359 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1360 | new_line = 1; | |
1361 | ||
4ddba79d JS |
1362 | /* write the first part of the config */ |
1363 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1364 | if (write_in_full(fd, contents + copy_begin, |
1365 | copy_end - copy_begin) < | |
1366 | copy_end - copy_begin) | |
1367 | goto write_err_out; | |
1368 | if (new_line && | |
2b7ca830 | 1369 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1370 | goto write_err_out; |
4ddba79d JS |
1371 | } |
1372 | copy_begin = store.offset[i]; | |
10bea152 JS |
1373 | } |
1374 | ||
10bea152 JS |
1375 | /* write the pair (value == NULL means unset) */ |
1376 | if (value != NULL) { | |
93c1e079 JH |
1377 | if (store.state == START) { |
1378 | if (!store_write_section(fd, key)) | |
1379 | goto write_err_out; | |
480c9e52 | 1380 | } |
93c1e079 JH |
1381 | if (!store_write_pair(fd, key, value)) |
1382 | goto write_err_out; | |
10bea152 JS |
1383 | } |
1384 | ||
1385 | /* write the rest of the config */ | |
dc49cd76 | 1386 | if (copy_begin < contents_sz) |
93c1e079 | 1387 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1388 | contents_sz - copy_begin) < |
1389 | contents_sz - copy_begin) | |
93c1e079 | 1390 | goto write_err_out; |
10bea152 | 1391 | |
dc49cd76 | 1392 | munmap(contents, contents_sz); |
10bea152 JS |
1393 | } |
1394 | ||
4ed7cd3a | 1395 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1396 | error("could not commit config file %s", config_filename); |
7a397419 | 1397 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1398 | goto out_free; |
10bea152 JS |
1399 | } |
1400 | ||
6cbf973c BS |
1401 | /* |
1402 | * lock is committed, so don't try to roll it back below. | |
1403 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1404 | * lock_file structures, it isn't safe to free(lock). It's | |
1405 | * better to just leave it hanging around. | |
1406 | */ | |
1407 | lock = NULL; | |
dafc88b1 SH |
1408 | ret = 0; |
1409 | ||
1410 | out_free: | |
6cbf973c BS |
1411 | if (lock) |
1412 | rollback_lock_file(lock); | |
dafc88b1 | 1413 | return ret; |
93c1e079 JH |
1414 | |
1415 | write_err_out: | |
64c0d71c | 1416 | ret = write_error(lock->filename); |
93c1e079 JH |
1417 | goto out_free; |
1418 | ||
10bea152 JS |
1419 | } |
1420 | ||
5ec31182 RR |
1421 | int git_config_set_multivar(const char *key, const char *value, |
1422 | const char *value_regex, int multi_replace) | |
1423 | { | |
1424 | const char *config_filename; | |
1425 | char *buf = NULL; | |
1426 | int ret; | |
1427 | ||
1428 | if (config_exclusive_filename) | |
1429 | config_filename = config_exclusive_filename; | |
1430 | else | |
1431 | config_filename = buf = git_pathdup("config"); | |
1432 | ||
1433 | ret = git_config_set_multivar_in_file(config_filename, key, value, | |
1434 | value_regex, multi_replace); | |
1435 | free(buf); | |
1436 | return ret; | |
1437 | } | |
1438 | ||
118f8b24 PB |
1439 | static int section_name_match (const char *buf, const char *name) |
1440 | { | |
1441 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1442 | if (buf[i] != '[') |
1443 | return 0; | |
1444 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1445 | if (!dot && isspace(buf[i])) { |
1446 | dot = 1; | |
1447 | if (name[j++] != '.') | |
1448 | break; | |
1449 | for (i++; isspace(buf[i]); i++) | |
1450 | ; /* do nothing */ | |
1451 | if (buf[i] != '"') | |
1452 | break; | |
1453 | continue; | |
1454 | } | |
1455 | if (buf[i] == '\\' && dot) | |
1456 | i++; | |
1457 | else if (buf[i] == '"' && dot) { | |
1458 | for (i++; isspace(buf[i]); i++) | |
1459 | ; /* do_nothing */ | |
1460 | break; | |
1461 | } | |
1462 | if (buf[i] != name[j++]) | |
1463 | break; | |
1464 | } | |
a4c0d463 AV |
1465 | if (buf[i] == ']' && name[j] == 0) { |
1466 | /* | |
1467 | * We match, now just find the right length offset by | |
1468 | * gobbling up any whitespace after it, as well | |
1469 | */ | |
1470 | i++; | |
1471 | for (; buf[i] && isspace(buf[i]); i++) | |
1472 | ; /* do nothing */ | |
1473 | return i; | |
1474 | } | |
1475 | return 0; | |
118f8b24 PB |
1476 | } |
1477 | ||
1478 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1479 | int git_config_rename_section(const char *old_name, const char *new_name) |
1480 | { | |
118f8b24 | 1481 | int ret = 0, remove = 0; |
fc1905bb | 1482 | char *config_filename; |
0667fcfb JS |
1483 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1484 | int out_fd; | |
1485 | char buf[1024]; | |
924aaf3e | 1486 | FILE *config_file; |
0667fcfb | 1487 | |
dc871831 DB |
1488 | if (config_exclusive_filename) |
1489 | config_filename = xstrdup(config_exclusive_filename); | |
1490 | else | |
a4f34cbb | 1491 | config_filename = git_pathdup("config"); |
0667fcfb | 1492 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1493 | if (out_fd < 0) { |
64c0d71c | 1494 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1495 | goto out; |
1496 | } | |
0667fcfb | 1497 | |
fc1905bb | 1498 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1499 | /* no config file means nothing to rename, no error */ |
1500 | goto unlock_and_out; | |
fc1905bb | 1501 | } |
0667fcfb JS |
1502 | |
1503 | while (fgets(buf, sizeof(buf), config_file)) { | |
1504 | int i; | |
480c9e52 | 1505 | int length; |
9a5abfc7 | 1506 | char *output = buf; |
0667fcfb JS |
1507 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1508 | ; /* do nothing */ | |
1509 | if (buf[i] == '[') { | |
1510 | /* it's a section */ | |
a4c0d463 AV |
1511 | int offset = section_name_match(&buf[i], old_name); |
1512 | if (offset > 0) { | |
118f8b24 PB |
1513 | ret++; |
1514 | if (new_name == NULL) { | |
1515 | remove = 1; | |
0667fcfb JS |
1516 | continue; |
1517 | } | |
0667fcfb | 1518 | store.baselen = strlen(new_name); |
480c9e52 | 1519 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1520 | ret = write_error(lock->filename); |
480c9e52 AW |
1521 | goto out; |
1522 | } | |
9a5abfc7 AV |
1523 | /* |
1524 | * We wrote out the new section, with | |
1525 | * a newline, now skip the old | |
1526 | * section's length | |
1527 | */ | |
1528 | output += offset + i; | |
1529 | if (strlen(output) > 0) { | |
1530 | /* | |
1531 | * More content means there's | |
1532 | * a declaration to put on the | |
1533 | * next line; indent with a | |
1534 | * tab | |
1535 | */ | |
1536 | output -= 1; | |
1537 | output[0] = '\t'; | |
1538 | } | |
0667fcfb | 1539 | } |
118f8b24 | 1540 | remove = 0; |
0667fcfb | 1541 | } |
118f8b24 PB |
1542 | if (remove) |
1543 | continue; | |
9a5abfc7 AV |
1544 | length = strlen(output); |
1545 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1546 | ret = write_error(lock->filename); |
480c9e52 AW |
1547 | goto out; |
1548 | } | |
0667fcfb | 1549 | } |
fc1905bb | 1550 | fclose(config_file); |
8b590075 | 1551 | unlock_and_out: |
4ed7cd3a | 1552 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1553 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 1554 | out: |
fc1905bb | 1555 | free(config_filename); |
0667fcfb JS |
1556 | return ret; |
1557 | } | |
40ea4ed9 JH |
1558 | |
1559 | /* | |
1560 | * Call this to report error for your variable that should not | |
1561 | * get a boolean value (i.e. "[my] var" means "true"). | |
1562 | */ | |
1563 | int config_error_nonbool(const char *var) | |
1564 | { | |
1565 | return error("Missing value for '%s'", var); | |
1566 | } |